1201121020112 has 20 divisors (see below), whose sum is σ = 2506185205860. Its totient is φ = 554363547648.

The previous prime is 1201121020031. The next prime is 1201121020133. The reversal of 1201121020112 is 2110201211021.

It can be written as a sum of positive squares in 2 ways, for example, as 221385306256 + 979735713856 = 470516^2 + 989816^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2887309937 + ... + 2887310352.

It is an arithmetic number, because the mean of its divisors is an integer number (125309260293).

Almost surely, 2^{1201121020112} is an apocalyptic number.

It is an amenable number.

1201121020112 is an abundant number, since it is smaller than the sum of its proper divisors (1305064185748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201121020112 is a wasteful number, since it uses less digits than its factorization.

1201121020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774620310 (or 5774620304 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1201121020112 its reverse (2110201211021), we get a palindrome (3311322231133).

The spelling of 1201121020112 in words is "one trillion, two hundred one billion, one hundred twenty-one million, twenty thousand, one hundred twelve".