212021031422 has 32 divisors (see below), whose sum is σ = 333496023552. Its totient is φ = 100902140064.

The previous prime is 212021031419. The next prime is 212021031449. The reversal of 212021031422 is 224130120212.

It is a super-2 number, since 2×212021031422² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212021031394 and 212021031403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10017383 + ... + 10038525.

It is an arithmetic number, because the mean of its divisors is an integer number (10421750736).

Almost surely, 2^212021031422 is an apocalyptic number.

212021031422 is a deficient number, since it is larger than the sum of its proper divisors (121474992130).

212021031422 is a wasteful number, since it uses less digits than its factorization.

212021031422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22232.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212021031422 its reverse (224130120212), we get a palindrome (436151151634).

The spelling of 212021031422 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, four hundred twenty-two".