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1022012020111 = 31591198146639
BaseRepresentation
bin11101101111101001010…
…10011101010110001111
310121200222202220220110011
432313310222131112033
5113221040034120421
62101301132254051
7133560260556535
oct16676452352617
93550882826404
101022012020111
11364484161455
121460a5911327
13754b5768a04
1437673a36155
151b8b8e6b4e1
hexedf4a9d58f

1022012020111 has 16 divisors (see below), whose sum is σ = 1072973721600. Its totient is φ = 972178437600.

The previous prime is 1022012020109. The next prime is 1022012020151. The reversal of 1022012020111 is 1110202102201.

It is a cyclic number.

It is not a de Polignac number, because 1022012020111 - 21 = 1022012020109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022012020091 and 1022012020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022012020151) 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, 21889930 + ... + 21936568.

It is an arithmetic number, because the mean of its divisors is an integer number (67060857600).

Almost surely, 21022012020111 is an apocalyptic number.

1022012020111 is a deficient number, since it is larger than the sum of its proper divisors (50961701489).

1022012020111 is a wasteful number, since it uses less digits than its factorization.

1022012020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58710.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1022012020111 its reverse (1110202102201), we get a palindrome (2132214122312).

The spelling of 1022012020111 in words is "one trillion, twenty-two billion, twelve million, twenty thousand, one hundred eleven".

Divisors: 1 31 59 1829 11981 46639 371411 706879 1445809 2751701 21913249 85302731 558781859 17322237629 32968129681 1022012020111