1021211422 has 32 divisors (see below), whose sum is σ = 1928369664. Its totient is φ = 394005600.

The previous prime is 1021211419. The next prime is 1021211453. The reversal of 1021211422 is 2241121201.

It is a super-4 number, since 4×1021211422⁴ (a number of 37 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021211396 and 1021211405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16329 + ... + 48052.

It is an arithmetic number, because the mean of its divisors is an integer number (60261552).

Almost surely, 2^1021211422 is an apocalyptic number.

1021211422 is a deficient number, since it is larger than the sum of its proper divisors (907158242).

1021211422 is a wasteful number, since it uses less digits than its factorization.

1021211422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64504.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1021211422 is about 31956.3987645667. The cubic root of 1021211422 is about 1007.0210633016.

Adding to 1021211422 its reverse (2241121201), we get a palindrome (3262332623).

The spelling of 1021211422 in words is "one billion, twenty-one million, two hundred eleven thousand, four hundred twenty-two".