122221021031 has 4 divisors (see below), whose sum is σ = 123363273672. Its totient is φ = 121078768392.

The previous prime is 122221021009. The next prime is 122221021057. The reversal of 122221021031 is 130120122221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130120122221 = 347 ⋅374985943.

It is a cyclic number.

It is not a de Polignac number, because 122221021031 - 2¹⁸ = 122220758887 is a prime.

It is a super-2 number, since 2×122221021031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221021231) 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, 571126160 + ... + 571126373.

It is an arithmetic number, because the mean of its divisors is an integer number (30840818418).

Almost surely, 2^122221021031 is an apocalyptic number.

122221021031 is a deficient number, since it is larger than the sum of its proper divisors (1142252641).

122221021031 is a wasteful number, since it uses less digits than its factorization.

122221021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142252640.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 122221021031 its reverse (130120122221), we get a palindrome (252341143252).

The spelling of 122221021031 in words is "one hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, thirty-one".