1021140211 has 16 divisors (see below), whose sum is σ = 1257548544. Its totient is φ = 807446304.

The previous prime is 1021140203. The next prime is 1021140227. The reversal of 1021140211 is 1120411201.

It is not a de Polignac number, because 1021140211 - 2³ = 1021140203 is a prime.

It is a super-2 number, since 2×1021140211² = 2085454661042249042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1021140191 and 1021140200.

It is not an unprimeable number, because it can be changed into a prime (1021140271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256740 + ... + 260686.

It is an arithmetic number, because the mean of its divisors is an integer number (78596784).

Almost surely, 2^1021140211 is an apocalyptic number.

1021140211 is a deficient number, since it is larger than the sum of its proper divisors (236408333).

1021140211 is a wasteful number, since it uses less digits than its factorization.

1021140211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1021140211 is about 31955.2845551405. The cubic root of 1021140211 is about 1006.9976555976.

Adding to 1021140211 its reverse (1120411201), we get a palindrome (2141551412).

The spelling of 1021140211 in words is "one billion, twenty-one million, one hundred forty thousand, two hundred eleven".