1011121220212 has 24 divisors (see below), whose sum is σ = 1873603105416. Its totient is φ = 475807792128.

The previous prime is 1011121220177. The next prime is 1011121220227. The reversal of 1011121220212 is 2120221211101.

It can be written as a sum of positive squares in 4 ways, for example, as 171929646736 + 839191573476 = 414644^2 + 916074^2 .

It is a super-2 number, since 2×1011121220212² (a number of 25 digits) contains 22 as substring.

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, 2335098 + ... + 2734030.

It is an arithmetic number, because the mean of its divisors is an integer number (78066796059).

Almost surely, 2^{1011121220212} is an apocalyptic number.

It is an amenable number.

1011121220212 is a deficient number, since it is larger than the sum of its proper divisors (862481885204).

1011121220212 is a wasteful number, since it uses less digits than its factorization.

1011121220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436227 (or 436225 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1011121220212 its reverse (2120221211101), we get a palindrome (3131342431313).

The spelling of 1011121220212 in words is "one trillion, eleven billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twelve".