1021213131222 has 32 divisors (see below), whose sum is σ = 2151598389120. Its totient is φ = 322236956160.

The previous prime is 1021213131221. The next prime is 1021213131223. The reversal of 1021213131222 is 2221313121201.

It is an interprime number because it is at equal distance from previous prime (1021213131221) and next prime (1021213131223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021213131221) 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, 3344779 + ... + 3637302.

It is an arithmetic number, because the mean of its divisors is an integer number (67237449660).

Almost surely, 2^{1021213131222} is an apocalyptic number.

1021213131222 is an abundant number, since it is smaller than the sum of its proper divisors (1130385257898).

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

1021213131222 is a wasteful number, since it uses less digits than its factorization.

1021213131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983388.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1021213131222 its reverse (2221313121201), we get a palindrome (3242526252423).

The spelling of 1021213131222 in words is "one trillion, twenty-one billion, two hundred thirteen million, one hundred thirty-one thousand, two hundred twenty-two".