1011121010212 has 6 divisors (see below), whose sum is σ = 1769461767878. Its totient is φ = 505560505104.

The previous prime is 1011121010129. The next prime is 1011121010269. The reversal of 1011121010212 is 2120101211101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 608624660736 + 402496349476 = 780144^2 + 634426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1011121010192 and 1011121010201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126390126273 + ... + 126390126280.

Almost surely, 2^{1011121010212} is an apocalyptic number.

It is an amenable number.

1011121010212 is a deficient number, since it is larger than the sum of its proper divisors (758340757666).

1011121010212 is a wasteful number, since it uses less digits than its factorization.

1011121010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252780252557 (or 252780252555 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011121010212 its reverse (2120101211101), we get a palindrome (3131222221313).

The spelling of 1011121010212 in words is "one trillion, eleven billion, one hundred twenty-one million, ten thousand, two hundred twelve".