1021211111022 has 8 divisors (see below), whose sum is σ = 2042422222056. Its totient is φ = 340403703672.

The previous prime is 1021211110979. The next prime is 1021211111023. The reversal of 1021211111022 is 2201111121201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1021211111022 is an admirable number.

It is a super-4 number, since 4×1021211111022⁴ (a number of 49 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021211110992 and 1021211111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021211111023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85100925913 + ... + 85100925924.

It is an arithmetic number, because the mean of its divisors is an integer number (255302777757).

Almost surely, 2^{1021211111022} is an apocalyptic number.

1021211111022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1021211111022 is a wasteful number, since it uses less digits than its factorization.

1021211111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170201851842.

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

Adding to 1021211111022 its reverse (2201111121201), we get a palindrome (3222322232223).

The spelling of 1021211111022 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred eleven thousand, twenty-two".