1022121201012 has 48 divisors (see below), whose sum is σ = 2437205283072. Its totient is φ = 333250952320.

The previous prime is 1022121201011. The next prime is 1022121201089. The reversal of 1022121201012 is 2101021212201.

It is a junction number, because it is equal to n+sod(n) for n = 1022121200982 and 1022121201000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121201011) 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, 347962 + ... + 1471502.

It is an arithmetic number, because the mean of its divisors is an integer number (50775110064).

Almost surely, 2^{1022121201012} is an apocalyptic number.

1022121201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022121201012 is an abundant number, since it is smaller than the sum of its proper divisors (1415084082060).

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

1022121201012 is a wasteful number, since it uses less digits than its factorization.

1022121201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125208 (or 1125206 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1022121201012 its reverse (2101021212201), we get a palindrome (3123142413213).

The spelling of 1022121201012 in words is "one trillion, twenty-two billion, one hundred twenty-one million, two hundred one thousand, twelve".