1211022010 has 32 divisors (see below), whose sum is σ = 2380948992. Its totient is φ = 439826880.

The previous prime is 1211021993. The next prime is 1211022031. The reversal of 1211022010 is 102201121.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 88552 + ... + 101308.

It is an arithmetic number, because the mean of its divisors is an integer number (74404656).

Almost surely, 2^1211022010 is an apocalyptic number.

1211022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211022010 is a deficient number, since it is larger than the sum of its proper divisors (1169926982).

1211022010 is a wasteful number, since it uses less digits than its factorization.

1211022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13638.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1211022010 is about 34799.7415220286. The cubic root of 1211022010 is about 1065.9021678043.

Adding to 1211022010 its reverse (102201121), we get a palindrome (1313223131).

The spelling of 1211022010 in words is "one billion, two hundred eleven million, twenty-two thousand, ten".