1220212021031 has 2 divisors, whose sum is σ = 1220212021032. Its totient is φ = 1220212021030.

The previous prime is 1220212020967. The next prime is 1220212021051. The reversal of 1220212021031 is 1301202120221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220212021031 - 2⁶ = 1220212020967 is a prime.

It is a super-2 number, since 2×1220212021031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220212021051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610106010515 + 610106010516.

It is an arithmetic number, because the mean of its divisors is an integer number (610106010516).

Almost surely, 2^{1220212021031} is an apocalyptic number.

1220212021031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220212021031 is an equidigital number, since it uses as much as digits as its factorization.

1220212021031 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1220212021031 its reverse (1301202120221), we get a palindrome (2521414141252).

The spelling of 1220212021031 in words is "one trillion, two hundred twenty billion, two hundred twelve million, twenty-one thousand, thirty-one".