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102221201201101 = 1011012091101001
BaseRepresentation
bin10111001111100000111010…
…011000101101011111001101
3111101221020210021020200010121
4113033200322120231133031
5101344243010001413401
61001223434353104541
730350144441631253
oct2717407230553715
9441836707220117
10102221201201101
112a63084a1a4364
12b56b1a1558151
1345065581c9198
141b357653cc5d3
15bc401c163ca1
hex5cf83a62d7cd

102221201201101 has 4 divisors (see below), whose sum is σ = 103233292302204. Its totient is φ = 101209110100000.

The previous prime is 102221201201023. The next prime is 102221201201219. The reversal of 102221201201101 is 101102102122201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66547171946025 + 35674029255076 = 8157645^2 + 5972774^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221201201101 - 211 = 102221201199053 is a prime.

It is a super-2 number, since 2×1022212012011012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221201201701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506045550400 + ... + 506045550601.

It is an arithmetic number, because the mean of its divisors is an integer number (25808323075551).

Almost surely, 2102221201201101 is an apocalyptic number.

It is an amenable number.

102221201201101 is a deficient number, since it is larger than the sum of its proper divisors (1012091101103).

102221201201101 is a wasteful number, since it uses less digits than its factorization.

102221201201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012091101102.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102221201201101 its reverse (101102102122201), we get a palindrome (203323303323302).

The spelling of 102221201201101 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred one million, two hundred one thousand, one hundred one".

Divisors: 1 101 1012091101001 102221201201101