1021121201112 has 32 divisors (see below), whose sum is σ = 2563395560880. Its totient is φ = 338961392640.

The previous prime is 1021121201077. The next prime is 1021121201131. The reversal of 1021121201112 is 2111021211201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021121201091 and 1021121201100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88265413 + ... + 88276980.

Almost surely, 2^{1021121201112} is an apocalyptic number.

1021121201112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021121201112 is an abundant number, since it is smaller than the sum of its proper divisors (1542274359768).

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

1021121201112 is a wasteful number, since it uses less digits than its factorization.

1021121201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176542643 (or 176542639 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1021121201112 its reverse (2111021211201), we get a palindrome (3132142412313).

The spelling of 1021121201112 in words is "one trillion, twenty-one billion, one hundred twenty-one million, two hundred one thousand, one hundred twelve".