10211400020 has 24 divisors (see below), whose sum is σ = 21521366664. Its totient is φ = 4069812096.

The previous prime is 10211399993. The next prime is 10211400029. The reversal of 10211400020 is 2000411201.

It can be written as a sum of positive squares in 4 ways, for example, as 2389058884 + 7822341136 = 48878^2 + 88444^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10211399974 and 10211400010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211400029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916067 + ... + 927146.

It is an arithmetic number, because the mean of its divisors is an integer number (896723611).

Almost surely, 2^10211400020 is an apocalyptic number.

10211400020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211400020 is an abundant number, since it is smaller than the sum of its proper divisors (11309966644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10211400020 is a wasteful number, since it uses less digits than its factorization.

10211400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843499 (or 1843497 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10211400020 its reverse (2000411201), we get a palindrome (12211811221).

It can be divided in two parts, 1021 and 1400020, that added together give a palindrome (1401041).

The spelling of 10211400020 in words is "ten billion, two hundred eleven million, four hundred thousand, twenty".