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1212332012101 = 77311320995307
BaseRepresentation
bin10001101001000100100…
…111100111001001000101
311021220020111120020022101
4101221010213213021011
5124330323443341401
62324534310232101
7153405501035050
oct21510447471105
94256214506271
101212332012101
114281688a7331
12176b5b655631
138a4264780a2
144296a28da97
1521807690101
hex11a449e7245

1212332012101 has 16 divisors (see below), whose sum is σ = 1416931346304. Its totient is φ = 1015836885504.

The previous prime is 1212332012077. The next prime is 1212332012131. The reversal of 1212332012101 is 1012102332121.

It is not a de Polignac number, because 1212332012101 - 227 = 1212197794373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212332012131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10439911 + ... + 10555396.

It is an arithmetic number, because the mean of its divisors is an integer number (88558209144).

Almost surely, 21212332012101 is an apocalyptic number.

It is an amenable number.

1212332012101 is a deficient number, since it is larger than the sum of its proper divisors (204599334203).

1212332012101 is a wasteful number, since it uses less digits than its factorization.

1212332012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20995500.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1212332012101 its reverse (1012102332121), we get a palindrome (2224434344222).

The spelling of 1212332012101 in words is "one trillion, two hundred twelve billion, three hundred thirty-two million, twelve thousand, one hundred one".

Divisors: 1 7 73 113 511 791 8249 57743 20995307 146967149 1532657411 2372469691 10728601877 16607287837 173190287443 1212332012101